Thermo 230/231/300/301/350
Troubleshooting
65
13.2. Fault code output on heaters with control module 1572D
If the system is equipped with a standard timer, a fault message appears
on the display of the timer after a fault occurs.
NOTE
If the system is operated with a switch, the nature of the fault is indicated
by a flashing code on an indicator light during the run-on time of the
heater. After five short signals, count the long flashes. The flashes
correspond to the number in the table below:
F 01
No start
F 02
Flame failure *
F 03
Undervoltage or overvoltage
F 04
Flame simulation identified during start-up or shut-down
F 05
Flame detector defective
F 06
Temperature sensor defective
F 07
Solenoid valve defective
F 08
Blower motor defective
F 09
unused
F 10
Temperature limiter defective / Overheating
F 11
Ignition spark generator defective
F 12
Fault lock-out due to repeated malfunction or
repeated flame failure
(8x no start-up or 5x flame failure)
*
On the Thermo 231 and 301, if the overheating thermostat trips
this is saved as a flame failure (F 02) in the control module
13.2.1.
To reset the heater after a fault lock-out
To reset the heater after a fault lock-out, switch on the heater and cut the
power supply to it during the starting process.
Th23_EA_degbfr_g.book Seite 65 Dienstag, 15. Februar 2005 2:03 14